Handling different HTTP methods in Django - Practice Problems & Coding Challenges

Challenge - 5 Problems

❓ component_behavior

intermediate

What is the output when a GET request is sent?

Consider this Django view function:

from django.http import HttpResponse

def my_view(request):
    if request.method == 'POST':
        return HttpResponse('Post received')
    return HttpResponse('Hello World')

What will the response content be when a GET request is sent to this view?

Django

from django.http import HttpResponse

def my_view(request):
    if request.method == 'POST':
        return HttpResponse('Post received')
    return HttpResponse('Hello World')

A HttpResponse with empty content

B HttpResponse with content 'Post received'

C Raises an error because GET is not handled

D HttpResponse with content 'Hello World'

💡 Hint

Check how the view handles methods other than POST.

The view returns 'Post received' only if the method is POST. For GET, it returns 'Hello World'.

📝 Syntax

intermediate

Which option correctly handles GET and POST methods in a Django view?

Choose the code snippet that correctly handles GET and POST requests in a Django view function.

A

def view(request):
    if request.method == 'POST':
        return HttpResponse('POST')
    else:
        return HttpResponse('GET')

B

def view(request):
    if request.method == 'GET':
        return HttpResponse('GET')
    elif request.method == 'POST':
        return HttpResponse('POST')

C

def view(request):
    if request.method == 'PUT':
        return HttpResponse('PUT')
    else:
        return HttpResponse('GET')

D

def view(request):
    if request.method == 'DELETE':
        return HttpResponse('DELETE')
    else:
        return HttpResponse('POST')

💡 Hint

Remember to handle both GET and POST explicitly or with else.

Option A correctly returns 'POST' for POST requests and 'GET' for all others, including GET requests.

🔧 Debug

advanced

Why does this Django view raise an error on POST?

Examine this Django view:

def my_view(request):
    if request.method == 'POST'
        return HttpResponse('Post received')
    return HttpResponse('Hello')

What is the cause of the error when a POST request is sent?

Django

def my_view(request):
    if request.method == 'POST'
        return HttpResponse('Post received')
    return HttpResponse('Hello')

A HttpResponse is not imported causing NameError

B Missing colon ':' after the if statement causes SyntaxError

C request.method is not a valid attribute causing AttributeError

D Indentation error in the return statement

💡 Hint

Check the syntax of the if statement line.

The if statement is missing a colon at the end, causing a SyntaxError.

❓ state_output

advanced

What is the response content after a PUT request?

Given this Django view:

from django.http import HttpResponse

def my_view(request):
    if request.method == 'POST':
        return HttpResponse('Post received')
    elif request.method == 'GET':
        return HttpResponse('Hello World')
    else:
        return HttpResponse('Other method')

What will be the response content if a PUT request is sent?

Django

from django.http import HttpResponse

def my_view(request):
    if request.method == 'POST':
        return HttpResponse('Post received')
    elif request.method == 'GET':
        return HttpResponse('Hello World')
    else:
        return HttpResponse('Other method')

A Raises an error because PUT is not handled

B HttpResponse with content 'Hello World'

C HttpResponse with content 'Other method'

D HttpResponse with content 'Post received'

💡 Hint

Check how the else block handles methods other than GET and POST.

The else block returns 'Other method' for any HTTP method not GET or POST, including PUT.

🧠 Conceptual

expert

Which HTTP method is NOT handled by this Django view and what happens?

Analyze this Django view function:

def my_view(request):
    if request.method == 'GET':
        return HttpResponse('GET method')
    elif request.method == 'POST':
        return HttpResponse('POST method')

Which HTTP method is not handled and what will the server respond with if that method is used?

Django

def my_view(request):
    if request.method == 'GET':
        return HttpResponse('GET method')
    elif request.method == 'POST':
        return HttpResponse('POST method')

A Any method other than GET or POST is not handled; server returns 500 Internal Server Error

B DELETE method is not handled; server returns 404 Not Found

C PUT method is not handled; server returns 200 OK with empty response

D PUT method is not handled; server returns 500 Internal Server Error

💡 Hint

Consider what happens if no return statement runs in a Django view.

If the request method is not GET or POST, the view does not return a response, causing Django to raise an error resulting in a 500 Internal Server Error.